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AM3871 Datasheet(PDF) 202 Page - Texas Instruments |
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AM3871 Datasheet(HTML) 202 Page - Texas Instruments |
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202 / 345 page  AM3874, AM3872, AM3871 SPRS695 – SEPTEMBER 2011 www.ti.com 8.1.3 Timing Parameters and Board Routing Analysis The timing parameter values specified in this data manual do not include delays by board routings. As a good board design practice, such delays must always be taken into account. Timing values may be adjusted by increasing/decreasing such delays. TI recommends utilizing the available I/O buffer information specification (IBIS) models to analyze the timing characteristics correctly. To properly use IBIS models to attain accurate timing analysis for a given system, see the Using IBIS Models for Timing Analysis application report (Literature Number: SPRA839). If needed, external logic hardware such as buffers may be used to compensate any timing differences. 8.2 Recommended Clock and Control Signal Transition Behavior All clocks and control signals must transition between VIH and VIL (or between VIL and VIH) in a monotonic manner. 8.3 Controller Area Network Interface (DCAN) The device provides two DCAN interfaces for supporting distributed realtime control with a high level of security. The DCAN interfaces implement the following features: • Supports CAN protocol version 2.0 part A, B • Bit rates up to 1 MBit/s • 64 message objects • Individual identifier mask for each message object • Programmable FIFO mode for message objects • Programmable loop-back modes for self-test operation • Suspend mode for debug support • Software module reset • Automatic bus on after Bus-Off state by a programmable 32-bit timer • Message RAM parity check mechanism • Direct access to Message RAM during test mode • CAN Rx/Tx pins are configurable as general-purpose IO pins • Two interrupt lines (plus additional parity-error interrupts line) • RAM initialization • DMA support For more detailed information on the DCAN peripheral, see the DCAN Controller Area Network chapter of the AM387x Sitara ARM Microprocessors (MPUs) Technical Reference Manual (Literature Number: SPRUGZ7). 8.3.1 DCAN Peripheral Register Description(s) 202 Peripheral Information and Timings Copyright © 2011, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): AM3874 AM3872 AM3871 |
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